Because I've seen a lot of people choose the characters I was going to choose (e.g. Emily, Paris, Mrs. Kim), I decided to go with minor characters only.
1. Dave Rygalski
Forget Dean, Logan, and Jess--Dave Rygalski is the true love interest of this show. Handsome, into all the same things you are, willing to jump through your mother's ridiculous hoops to show his love?! Lane's eventual marriage to Zach is a disgusting slap in the face of Dave Rygalski. She should have stayed faithful to him and become a Korean nun if need be. Curse The O.C.
2. Babette & Morey
Two-for-one here, I know, but they're a package deal. They're a beautiful example of a life-long, committed relationship where two imperfect people accept each other for who they are. And, if you'll notice, everyone in Stars Hollow is single, so that town needs these two as their role models.
Apparently I'm getting moralistic here, but I also love how much Gil loves his wife and kids. He is so irresistibly good and positive and self-assured, never made to feel less by his age or his place in life. I also love how his hair is always slightly frizzy and he doesn't even care. He's a role model for me.
4. Liz Danes
I love Liz for being crazy, but for being the kind of crazy that finds her wings in a life with T.J. to live on the road with a Renaissance Fair and sell jewelry and have a baby named Doula. I love her for being Jess' mom and for embodying all of her own emotion and all of Luke's as well.